It should be 7.8 which is answer D
Answer:
The midpoint is 
Step-by-step explanation:
we know that
The formula to calculate the midpoint between two points is equal to

we have


substitute


You would solve this with simultaneous equations, so if we write it as:
5n + 2p = 9
3n + 2p = 6
(subtract)
2n = 3
÷ 2
notebooks = 1.5
Now you would substitute it in:
(3 × 1.5) + 2p = 6
4.5 + 2p = 6
- 4.5
2p = 1.5
÷ 2
pens = 0.75
So your final answer is notebooks are $1.50 and pens are $0.75, I hope this helps!
Answer:
D. 3 Points
Step-by-step explanation:
Given



Required
Determine the least possible score
The least point a member of a team can get is when n = 8.
i.e.



To get the least score, each of the 3 members must have 1 point each.
So:


Answer: -10x (5x^3 - 8x^2 - 3x - 9) is the factored solution.